23 Oct
2013
23 Oct
'13
5 a.m.
It is not about overclocking in an Flash device. It is about heat generation during erase. Each erase of a flash block generates heat and causes aluminum atoms to migrate from the upper mask layers through the SiO2 toward the isolated gates that store the information. At some point the gate conductivity rises wich leads to the inability of those gates to hold electrical charges for longer times leading to bit flips from 1 to 0...